[Perf] Linux/x64: 3 Regressions on 7/22/2024 10:21:41 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	7dd68f40ab9ae6f631d79b76f2d9b464f7ecee36
Compare	08d807075c5c29891e8f5bfafd02fdc10a182310
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SingleWithPredicate_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	151.96 ns	172.85 ns	1.14	0.05	True
FirstWithPredicate_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	149.97 ns	174.53 ns	1.16	0.06	False
WhereLast_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.87 ns	15.19 ns	1.10	0.13	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Linq.Tests.Perf_Enumerable*'

Details

System.Linq.Tests.Perf_Enumerable.SingleWithPredicate_LastElementMatches(input: IEnumerable)

ETL Files

Histogram

JIT Disasms

System.Linq.Tests.Perf_Enumerable.FirstWithPredicate_LastElementMatches(input: IEnumerable)

ETL Files

Histogram

JIT Disasms

System.Linq.Tests.Perf_Enumerable.WhereLast_LastElementMatches(input: Array)

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository